Lightning arrester



FIG. 1 is a top perspective view of a lightning arrester, showing my new design;

FIG. 2 is a side elevational view thereof, all sides thereof being a mirror image of that shown;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a lightning arrester, as shown and described. 